AI Chat Assistant

character.AI c.ai

Character.AI is the world's largest role-playing chat platform, allowing users to freely talk to "characters" created by AI, generate stories and interact with voice.

Chegg Chegg

A long-established online learning platform that integrates AI Q&A and expert coaching services

Claude Opus 4.1 Anthropic

A high-intensity inference model for real coding and Agent tasks, more suitable for multi-step project execution and detail tracking than Opus 4

Cohere Cohere

Cohere is an enterprise-level large model platform, focusing on privatization and controllable deployment, emphasizing the "Own your AI" route.

AI Dungeon AI Dungeon

Classic AI interactive narrative platform, supporting open plots and role-playing

Deepseek R1T2 Deepseek R1T2

Based on the two-step reasoning verification enhanced model of DeepSeek R1, the accuracy of mathematical and logical reasoning is improved by 8-15%

AingDesk AingDesk

Open source AI desktop client, deploy hundreds of models to personal computers with one click

Dify Dify

Open source LLM application development platform, visually orchestrating AI workflow

Arena Arena

Community-driven AI model practical evaluation platform supports selection decision-making and model iteration

Doubao Doubao

Doubao is ByteDance’s integrated AI assistant for the public and enterprises, focusing on Chinese experience, multi-modal capabilities and low-threshold usage.

Gemini Google

Google's official AI assistant, covering Gemini 3 Pro model Deep Research, Agent and multi-modal generation

Bai Xiaoying 百小应

The free AI assistant launched by Baichuan Intelligence provides conversation, search and content generation capabilities.